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General Information & Atomic Structure:
Physical Properties:
Atomic Number - 40
Atomic Mass (not rounded) - 91.22
Number of Protons - 40
Number of Elections - 40
Kind of Isotope - It is a radioisotope
Number of neutrons in Isotope - 54
State of matter at room temperature - Solid
Melting Point - 2123 K (1850 degrees celcius)
Boiling point - 4673 K (4400 degrees celcius)
Density - (@293 K) 6.52 g/cm3
Abundance in Earth's Crust- 165 parts per million by weight, 38 parts per million by moles
Background:
Chemical Properties:
Scientist who discovered the element - Martin Heinrich Klaproth
Year Discovered - 1789
Origin of its name - Persian word 'zargon', meaning gold-like.
Chemical family - Transition Metal
Common uses - Used to make surgical instruments and superconductive magnets.
Elements that react with this element - Air, Water, Halogens, Acids, and Bases
Compounds that contain this element - Hydrides, Fluorides, Chlorides, Brimides,
Oxides, Sulfides, Selenides, Tellurides, Nitrides, Carbonyls and Complezes

Reactions with Halogens: Zirconium reacts with halogens upon warming to form zirconium halides. This means that they react with fluorine to form zirconium bromide ZrF4. Chlorine also reactes to make zirconium chloride, ZrCl4. It also reacts with bromine to make zirconium bromide and with iodine to make zirconium iodide.

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http://www.chemicool.com/elements/zirconium.html
http://www.webelements.com/zirconium/compounds.html
http://www.lenntech.com/periodic/elements/zr.htm